Why not take advantage now with the high price of Bitcoin, and get ahead of the flood. Early bird gets the worm
Because the price is going to rise further
Because no one knows where the price is going. That's why you make decisions based on the price now and not where you think/hope it might go.
I guess once a price competitive mining rig shows up in the market, Cryptx would buy that all at once. They are quite sensitive to this issue than most of us.